Gas-pump for oil-wells.



J. P. WINTZ.

GAS PUMP FOR OIL WELLS.

APPLIOATION FILED MAY 22, 1911.

Patented Feb. 20, 1912.

2 SHEETS-SHEET 1.

J. P. WINTZ.

GAS PUMP FOR OIL WELLS. APPLIIMTION FILED MAY 22, 1911.

Patented Feb. 20, 1912.

2 SHEETS-SHEET 2.

" IHHIHIHHI JAMES PHILLIP WINTZ, OF RIPLEY, WEST VIRGINIA.

GAS-PUMP FOR OIL-WELLS.

To all whom it may concern:

Be it known that I, JAMEs P. IVINTZ, a citizen of the United States, residing at Ripley, in the county of Jackson and State of lVest Virginia, have invented a new and useful Improvement in Gas-Pumps for Oil- Wells, of which the following is a specification.

This invention relates to the improvement in oil and gas well pumps, and consists of a combined oil and vacuum gas pump, by means of which oil and gas may be produced from wells showing slight quantities of either, and at the same time may be employed for the purpose of restoring light gas wells which have been drowned by water, or for the purpose of either increasing or maintaining a uniform pressure of gas on a consumers gas maln.

The device includes and embraces means for pumping oil and gas from the same well and with the same power and thereby in creasing the profitableness of the well.

In carrying out these objects the device is constructed as hereinafter described, pointed out in the claims and shown in the accompanying drawings, in which Figure 1 is a vertical sectional View, partly in side elevation. Fig. 2 is a cross section upon the line 22 of Fig. 1. Fig. 3 is an enlarged detail sectional view of a piston on the line 33 of Fig. 5. Fig. 4: is a side elevation of said piston with its various parts separated in order to disclose the construction. Fig. 5 is a section on the line 5-5 of Fig. 3. Fig. 6 is a side view of an expanded sectional ring.

In practice, my invention is combined with the ordinary oil pumping mechanism, the

'only alteration being in the above ground connections and fittings of the oil well casing and pump tubing in order to avoid the escape of gas through the same. I have therefore shown only so much of the oil pumping mechanism as is necessary to illustrate the changes made in the above ground connection and to show the relation of the various parts.

In these drawings 1 represents the well casing above which extends a tubing 2 and a sucker rod 3 works in said tubing being inclosed by a pumping tube 4. The oil discharge pipe 5 leads from the pumping tube A to any suitable place of storage, being pro vided with a trap 5" to prevent passage of gas therethrough. A gas discharge pipe 6 Specification of Letters Patent.

Application filed May 22, 1911.

Patented Feb. 29, 1912. Serial No. 628,863.

leads to either suitable storage tanks or directly to a consumers main, and said pipe is provided with a gate valve 7. Arranged upon a suitable platform 8 is a cylinder 9 in which works a piston 10, the piston 10 and the sucker rod 3 being both connected to a common walking beam 11. A pipe 12 affords communication between the well tube 2 and the lower portion of the cylinder 9, a suitable gate valve 13 being placed in said pipe, and the pipe being alsoprovided with a suit-able check valve 14. A pipe 15 provided with an outwardly open check valve 16 communicates with the pipe 6 upon the side of the gate valve 7 opposite the well tubing 4.

The cylinder 9 is provided with a lateral bracket 17 which supports and forms the lower end of a cylinder 18 into which the pumping tube 4 opens, and a common cylin der head 19 is provided for the upper ends of both the cylinders 9 and 18, being provided with removable threaded sections 20 by removing which access can be had to said cylinders. It will be obvious that during movement of the walking beam and with the gate valve 7 closed and the valve 13 open oil will be pumped up through the tube 4: and discharged through the pipe 5,

and at the same time upon the up stroke of the piston 10 gas from the tubing 2 will be drawn through the pipe 12 into the cylinder 9 and then forced out upon the down stroke of the piston 10 through the pipe 15 into the pipe 6. In case the gas pressure is suflicient to maintain the supply in the pipe 6 without using the pumping cylinder 9 the piston rod 10 can be disconnected from the walking beam, the valve 13 closed and the valve 7 opened. But should the gas pressure at any time fall, or should it become necessary to put an additional pressure upon the main it is only necessary to close valve 7 and open valve 13 and connect the piston rod 10 to the walking beam 11. It will be noted that the pipes 12 and 15 in combination with the cylinder 9 form a by-pass around the valve 7, thereby permitting the gas to be shunted around said valve and forced under pressure into the pipe 6 when desired.

In order to keep the piston 10 properly packed and to enable this tobe done with ease the said piston is constructed in the following manner: The piston head is formed of a base plate 21 and the piston rod is formed of two concentric sect-ions 10 and 10", the

plate 21 being rigid with the inner rod 10*. The outer rod 10 is in the form of a sleeve adapted to turn upon the rod 10 and which is rigid wit-h a cam disk 22 having a plurality of eccentric cam portions. An upper plate 23 is threaded upon the sleeve 10 and the cam disk is held between said plates. A sectional ring 24: is also heldbetween the plates, the sections of the ring overlapping as shown in Fig. 6,'and having interior cam faces adapted to engage those of the disk 22 as shown in Fig. 5. Suitable bolts 26 connect the two plates together and pass loosely through transverse slots 28 formed in the sections of the ring 24. A suitable packing ring 29 is also held between the plates and bears upon the movable ring sections 24. By removing the nuts 30 from the bolts 26 and giving a partial rotation to the plate 23 it will release the disk 22 and by applying a wrench to a nut 31 upon the upper portion of the sleeve portion 10 the said disk 22 can be turned toward the right, thereby forcing the ring sections 24L outwardly and expanding the packing ring 29.

What I claim is 1. The combination with the upper portion of an oil well tubing, of a supplemental pumping cylinder arranged adjacent thereto and having valve controlled communication with the tubing of an oil well for the purpose of receiving gas therefrom, of a discharge pipe leading from said cylinder, a gas discharge pipe leading from the well tubing, a valve therein, the first mentioned discharge pipe communicating with the second mentioned discharge pipe, and the valve in the latter being between the well tubing and the juncture of the two pipes, a piston operating in the supplemental cylinder, and common means for actuating the oil pump ing mechanism and the said piston.

2. A device of the kind described having separate discharge pipes for oil and gas, of a cylinder, said cylinder having communication with the well and with a gas discharge pipe therefrom, a valve situated in said discharge pipe between the well and the point of communication between said discharge pipe and the cylinder, a valve for cutting off communication between the cylinder and the well, and a piston working in said cylinder and actuated by the well pumping mechanism.

3. The combination with an oil well tubing, of a cylinder having valve controlled communication with the said tubing, of a gas supply pipe, also having valve controlled communication with said tubing, and having valve controlled communication with said cylinder and a piston working in the said cylinder, as and for the purpose set forth.

4. In an oil well device comprising a well tubing, and a pumping tube, an oil discharge pipe having a trap therein, said pipe being in communication with the pumping tube, a gas discharge pipe in communication with the well tube, a valve in the last mentioned pipe, a by-pass arranged around said valve, a cylinder arranged in and forming a part of said bypass and a piston operating in said cylinder, said piston being operated by the oil pumping mechanism.

5. The combination with an oil well tubing having a pumping tube, of a U-trap adapted to receive oil from said pumping tube, said trap preventing the escape of gas from said tube, a cylinder having valve controlled communication with the well tubing, and adapted to receive gas therefrom, a gas main also having valve controlled communi-,

cation with said cylinder, and a piston working in said cylinder, said piston being operatively connected to the walking beam of the oil pumping mechanism.

JAMES PHILLIP WINTZ.

l/Vitnesses:

ROBERT E. HUGHES, HUGH L. HUeHEs.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

